Nº.0 Intensive Bond Building Treatment

OLAPLEX Nº.0 INTENSIVE BOND BUILDING TREATMENT primes your hair for your deepest at-home repair with this salon-inspired pre-treatment to boost the effects of Nº.3 HAIR PERFECTOR. The highly concentrated formula rebuilds disulfide bonds to repair more severe damage and immediately strengthens hair when Nº.0 is used with Nº.3.Features Benefits:Boosts the efficacy of OLAPLEX Nº.3 HAIR PERFECTORAbsorbs quickly to jumpstart repair deep within the hair strandStrengthens and rebuilds hair bondsScientifically proven: 68% more repair 3x stronger hair**When used as a two-part system in just one use